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nata0808 [166]
3 years ago
9

Help me please!!!!!!!!!!!!!!!! (-7n^2-8n)+(-n^2+9n+9)

Mathematics
2 answers:
Sever21 [200]3 years ago
7 0
-9n^2+n+9 is the answer....
Setler [38]3 years ago
6 0
I combined like terms! I hoped this helps

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In our Solar system six of the eight planets have moons what percentage of the planets have moons
Vladimir79 [104]
75%
you just divide 6/8
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2 years ago
Is d y / d x the exact same as f ' ( x ) ? If yes, which is more commonly used?
Murrr4er [49]
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Which shows another way to write 73?
nata0808 [166]
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8 0
3 years ago
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PLZ do this!!! I will give brainliest to anyone who does them all right. I need this done at 3:30 (it 2:44 right now)! No fake a
leva [86]

Answer:

A: y=1/3x+5

B: y=-2x+9

C: y=-3

D:y=2x+9

E: y=-10x+80

F:y=x-2

#1 rodney's error for

y=30x+10 is that he started off at 30 but he had to start off at 10 so it starts at (0,10) (1,40) (2,70) and keep going on by adding one to the x value and 30 to the y value

#2 rodneys error for

y=-1/2x+5 is that he went up by 1/2 instead of going down. it's a negative 1/2 so he had to go down

#3 Rodneys error for

y=x-2 is that he didn't start at (0.-2)

I'm not sure about the last picture but i think that it's

Tierra, Sharayah, Caleb, and Lang

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
In ΔPQR, the measure of ∠R=90°, the measure of ∠P=26°, and PQ = 8.5 feet. Find the length of QR to the nearest tenth of a foot.
Vitek1552 [10]

Answer:

3.7feet

Step-by-step explanations

Using the sin rule

A/sin a = B/sin b

Let A = PQ = 8.5feet

B = QR = x feet

a = R = 90°

b = P = 26°

Substitute the values into the Sin rule

8.5/sin90 = x/sin26

8.5×sin 26 = x × sin 90

8.5×0.4383 = x× 1

3.7255 = x

Hence the length of QR to the nearest tenth 3.7feet

5 0
2 years ago
Read 2 more answers
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